What would be the most efficient way in thoery to build an induction cooker (hob) to run from DC power at low (ish?*) voltages? I say in theory, so the answers are not limited by products that exist on the market, but by the practical physics/engineering (and in case anyone is listening, and wants to bring a specialised cooker to market for Yachts, RVs, off-grid installations etc).
So, asssuming that an inverter to step up the 48V DC to 240V AC would work (if it has enough rated power) but has some inneficiency/loss, could an induction cooker be designed that runs natively on 48V DC source (or 24V) more efficiently?
For context, increasingly sailing yachts are moving to electric only power, with big battery banks and no engine. These systems seem to run at around 48V DC (various other voltages are also used). However, as far as I can tell all induction hobs run on AC domestic power (240/250v AC - or 110V AC in the US I assume). Anecdotally, some of these boats also use electric cooking, so they do not to have to carry gas for the cookers, but I didn't find details of these cooking set ups.
Off-topic for this question is the batteries, their storage capacity and current/power availability. Let's just assume there's plenty. (it's an interesting topic, but it's not what I'm asking here).
* I say low voltage, I don't know if 48V counts or not. It's a far cry from 3V inputs in a microcontroller, but equally far from the multi-kV of high voltage systems.